CN111828403A

CN111828403A - Centrifugal pump with self-cleaning function

Info

Publication number: CN111828403A
Application number: CN202010731109.8A
Authority: CN
Inventors: 陈其东
Original assignee: Individual
Current assignee: Anhui Nanfang Chemical Pump Industry Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2020-10-27
Anticipated expiration: 2040-07-27
Also published as: CN111828403B

Abstract

The invention relates to the technical field of water pumping devices, in particular to a centrifugal pump with a self-cleaning function, which comprises a pump shell and a base, wherein the pump shell is fixedly arranged on the base, a water inlet and a water outlet are formed in the pump shell, an output shaft is arranged in the pump shell in a rotating mode, water pumping mechanisms are symmetrically arranged in the pump shell and comprise rotating blades and impeller disks, the impeller disks are rotatably arranged in the pump shell, the rotating blades are circumferentially fixed on the impeller disks, grooves are integrally formed in the impeller disks, intermediate disks are rotatably arranged in the grooves, cutters are circumferentially integrally formed in the intermediate disks, cutter grooves are integrally formed in the rotating blades in a penetrating mode, a direction changing assembly is arranged between the impeller disks, and a cleaning mechanism is arranged in the pump shell.

Description

Centrifugal pump with self-cleaning function

Technical Field

The invention relates to the technical field of pumping devices, in particular to a centrifugal pump with a self-cleaning function.

Background

Centrifugal pumps are very widely used and are an almost indispensable piece of equipment in a process system. The centrifugal pump has the advantages of small volume, simple operation and use and long service life. If the pipeline transportation system is taken as the blood vessel circulation system of a human body, the centrifugal pump is equivalent to a heart for transporting blood.

When the existing centrifugal pump is used, weeds in water resources and other large-volume sundries are often pumped into the pump, the centrifugal pump is blocked due to long-term accumulation, the use of the centrifugal pump is affected, the existing centrifugal pump does not have a cleaning function, the centrifugal pump needs to be manually disassembled to clean the centrifugal pump, and the centrifugal pump is very troublesome.

Disclosure of Invention

The present invention is directed to a centrifugal pump with a self-cleaning function, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a centrifugal pump with self-cleaning function, includes pump case and base, pump case fixed mounting is on the base, be equipped with water inlet and delivery port on the pump case, and the pump case internal rotation is provided with the output shaft, the symmetry is provided with the mechanism of drawing water in the pump case, the mechanism of drawing water includes commentaries on classics leaf and impeller dish, the impeller dish rotates to be installed in the pump case, and commentaries on classics leaf circumference fixes on the impeller dish, integrated into one piece is fluted on the impeller dish, the intermediate disc is installed to the recess internal rotation, circumference integrated into one piece has the cutter on the intermediate disc, it has the sword groove to run through integrated into one piece on the commentaries on classics leaf, be.

Further: the cutter groove is positioned on the motion track of the cutter.

Further: the direction changing assembly comprises a gear ring, a driving wheel and a driven wheel, wherein a rack is integrally formed on the inner wall of the gear ring, and the driven wheel is meshed with the gear ring and the driving wheel.

Further: the driving wheel is fixedly connected with the impeller discs, the driven wheel is connected between the impeller discs in a shaft mode, the driving wheel penetrates through the impeller discs and is fixedly installed with the middle disc, and the output shaft is fixedly connected with the driving wheel.

And further: clean mechanism includes scraper blade and guide arm, guide arm fixed mounting is at the scraper blade, just integrated into one piece has the guide slot in the pump case, guide arm and guide slot sliding fit, the one end fixed mounting of scraper blade has trapezoidal piece, fixed mounting has the dead lever on the impeller dish, the one end fixed mounting of dead lever has the contact block of support, fixed mounting has the clockwork spring in the pump case, the one end fixed connection of clockwork spring and scraper blade.

And further: the trapezoidal block is inconsistent with the motion trail of the contact block.

And further: the cutter is integrally formed with a sharp part.

And further: the contact block is integrally formed with an inclined contact portion.

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

1. according to the invention, the rotating blade, the impeller disc, the middle disc, the cutter, the gear ring, the driving wheel, the driven wheel and the cutter groove are arranged, the driving wheel is driven to rotate through the rotation of the output shaft, the gear ring is driven to rotate under the action of the driven wheel, the rotation direction of the gear ring is opposite to that of the driving wheel, and the impeller disc and the middle disc are driven to rotate, so that the cutter cuts and crushes sundries in the pump shell, and the phenomenon of blockage caused by accumulation of the sundries in the pump shell is avoided.

2. According to the centrifugal pump, the scraper, the guide rod, the trapezoid block, the abutting block, the fixed rod, the clockwork spring and the guide groove are arranged, when the centrifugal pump works, the fixed rod is driven to rotate through the rotation of the impeller disc, the abutting block is driven to rotate, when the abutting block is uppermost, the abutting block is in contact with the trapezoid block, the scraper is driven to slide along the guide groove under the action of the guide rod, the inner wall of the pump shell is cleaned, the adhesion of the moss is avoided, when the abutting block is lowermost, the abutting block is separated from the trapezoid block, the scraper is reset under the action of the clockwork spring, and the phenomenon that the moss is grown in the centrifugal pump to influence the work of the centrifugal.

Drawings

FIG. 1 is a schematic view of a centrifugal pump with a self-cleaning function;

FIG. 2 is a schematic structural view of a side view of a centrifugal pump having a self-cleaning function;

FIG. 3 is an enlarged partial structural view of a centrifugal pump with a self-cleaning function at A;

FIG. 4 is an enlarged partial structural view of a centrifugal pump having a self-cleaning function at B;

FIG. 5 is a schematic structural diagram of a pumping mechanism in a centrifugal pump with a self-cleaning function;

FIG. 6 is a schematic structural view of a redirecting assembly in a centrifugal pump with a self-cleaning function;

fig. 7 is a schematic structural view of a scraper and a guide rod in the centrifugal pump with the self-cleaning function.

The reference numerals in the schematic drawings illustrate:

1-pump shell, 2-base, 3-rotating blade, 4-impeller disk, 5-intermediate disk, 6-cutter, 7-output shaft, 8-redirection component, 801-toothed ring, 802-driving wheel, 803-driven wheel, 9-cutter groove, 10-scraper, 11-guide rod, 12-trapezoidal block, 13-contact block, 14-fixed rod, 15-spiral spring, 16-guide groove, 17-groove, 18-water outlet, 19-water inlet and 20-sharp part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention, and the present invention is further described with reference to the embodiments below.

Example 1

Referring to fig. 1-7, in the embodiment of the present invention, a centrifugal pump with a self-cleaning function includes a pump case 1 and a base 2, the pump case 1 is fixedly installed on the base 2, the pump case 1 is provided with a water inlet 19 and a water outlet 18, the pump case 1 is rotatably provided with an output shaft 7, in order to perform centrifugal water pumping, a water pumping mechanism is symmetrically arranged in the pump case 1, the water pumping mechanism includes a rotary vane 3 and an impeller plate 4, the impeller plate 4 is rotatably installed in the pump case 1, the rotary vane 3 is circumferentially fixed on the impeller plate 4, a groove 17 is integrally formed on the impeller plate 4, a middle plate 5 is rotatably installed in the groove 17, a cutter 6 is circumferentially integrally formed on the middle plate 5 for stirring weeds or sundries in the pump, a cutter slot 9 is integrally formed on the rotary vane 3, and the cutter slot 9 is located on a movement track of the cutter 6, in order to realize that the rotating directions of the cutter 6 and the rotating blade 4 are opposite, a direction changing component is arranged between the impeller discs 4, the direction changing component comprises a gear ring 801, a driving wheel 802 and a driven wheel 803, a rack is integrally formed on the inner wall of the gear ring 801, the driven wheel 803 is meshed with the gear ring 801 and the driving wheel 802, the driving wheel 801 is fixedly connected with the impeller discs 4, the driven wheel 803 is connected between the impeller discs 4 in a shaft mode, the driving wheel 802 penetrates through the impeller discs 4 and is fixedly installed with the intermediate disc 5, the output shaft 7 is fixedly connected with the driving wheel 802, the driving wheel 802 is driven to rotate through the rotation of the output shaft 7, the gear ring 801 is driven to rotate under the action of the driven wheel 803, the rotating direction is opposite to that of the driving wheel 802, the impeller discs 4 and the intermediate disc 5 are driven to rotate, and the cutter 6 is used for cutting and crushing the sundries, leading to a clogging phenomenon.

Furthermore, because the centrifugal pump is used for a long time, moss is easy to grow on the inner wall of the pump shell 1, the moss is very laborious to clean, in order to avoid growing moss in the centrifugal pump, a cleaning mechanism is arranged in the pump shell 1, the cleaning mechanism comprises a scraper 10 and a guide rod 11, the guide rod 11 is fixedly arranged on the scraper 10, a guide groove 16 is integrally formed in the pump shell 1, the guide rod 11 is in sliding fit with the guide groove 16, a trapezoidal block 12 is fixedly arranged at one end of the scraper 10, a fixing rod 14 is fixedly arranged on the impeller disc 4, a contact block 13 is fixedly arranged at one end of the fixing rod 14, the trapezoidal block 12 is in contact with the movement track of the contact block 13, when the contact block 13 is positioned at the top, the trapezoidal block 12 is in maximum area contact with the contact block 13, when the contact block 13 is positioned at the bottom, the contact area is zero, and the separation occurs, the inside fixed mounting of pump case 1 has clockwork spring 15, clockwork spring 15 and the one end fixed connection of scraper blade 10, when centrifugal pump during operation, rotate through impeller dish 4 to drive dead lever 14 and rotate, thereby drive and support touch multitouch 13 and rotate, when supporting touch multitouch 13 the top, with trapezoidal block 12 contact, thereby drive scraper blade 10 and slide along guide slot 16 under the effect of guide arm 11, thereby clean the inner wall of pump case 1, avoid the moss to adhere to, when supporting touch multitouch 13 the bottom, support touch multitouch 13 and trapezoidal block 12 and break away from, reset scraper blade 10 under clockwork spring 15, thereby avoided nourishing living the moss in the centrifugal pump and influenced its work.

Example 2

Referring to fig. 3 and 4, the present embodiment is further improved based on embodiment 1, and the improvement is that a sharp portion 20 is integrally formed on the cutting knife 6, so as to enhance the crushing and cutting work of the impurities.

Further, the contact block 13 is integrally formed with an inclined contact portion so as to be in contact with the trapezoidal block 12 and slide on the trapezoidal block 12.

With reference to the embodiment 1 and the embodiment 2, the working principle of the invention is as follows:

when the centrifugal pump is used, the output shaft 7 rotates to drive the driving wheel 802 to rotate, under the action of the driven wheel 803, the toothed ring 801 rotates, the rotation direction of the toothed ring is opposite to that of the driving wheel 802, the impeller disc 4 and the intermediate disc 5 are driven to rotate, the cutter 6 cuts and crushes sundries in the pump shell 1, the phenomenon that the sundries in the pump shell are accumulated and blocked is avoided, when the centrifugal pump works, the impeller disc 4 rotates to drive the fixing rod 14 to rotate so as to drive the contact block 13 to rotate, when the contact block 13 is uppermost, the contact block contacts with the trapezoidal block 12, the scraper 10 is driven to slide along the guide groove 16 under the action of the guide rod 11, the inner wall of the pump shell 1 is cleaned, the green moss is prevented from being attached, when the contact block 13 is lowermost, the block 13 is separated from the trapezoidal block 12, the scraper 10 is reset under the action of the trapezoidal spring 15, thereby avoiding the influence of the moss growing in the centrifugal pump on the work.

It should be particularly noted that, in the present application, the pump case 1 and the base 2 are applications in the prior art, the intermediate disc 5, the cutter 6, the redirection assembly 8, the guide groove 9, the scraper 10, the guide rod 11, the trapezoidal block 12 and the conflict block 13 are innovation points of the present application, and the problems that when the existing centrifugal pump is used, weeds and other large-volume sundries in water resources are often drawn into the pump, and the centrifugal pump is blocked due to long-term accumulation, so that the use of the centrifugal pump is affected, and the existing centrifugal pump does not have a cleaning function, so that the centrifugal pump needs to be manually disassembled to be cleaned, and is very troublesome are effectively solved.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A centrifugal pump with a self-cleaning function comprises a pump shell (1) and a base (2), and is characterized in that the pump shell (1) is fixedly installed on the base (2), a water inlet (19) and a water outlet (18) are formed in the pump shell (1), an output shaft (7) is arranged in the pump shell (1) in a rotating mode, pumping mechanisms are symmetrically arranged in the pump shell (1) and comprise rotating blades (3) and an impeller disc (4), the impeller disc (4) is rotatably installed in the pump shell (1), the rotating blades (3) are circumferentially fixed on the impeller disc (4), grooves (17) are integrally formed in the impeller disc (4), a middle disc (5) is rotatably installed in the grooves (17), cutters (6) are circumferentially integrally formed in the middle disc (5), and cutter grooves (9) are integrally formed in the rotating blades (3), a redirection assembly is arranged between the impeller discs (4), and a cleaning mechanism is arranged in the pump shell (1).

2. Centrifugal pump with self-cleaning function according to claim 1, characterized in that the knife groove (9) is on the movement trajectory of the cutting knife (6).

3. The centrifugal pump with the self-cleaning function according to claim 1, wherein the direction-changing assembly comprises a toothed ring (801), a driving wheel (802) and a driven wheel (803), a rack is integrally formed on the inner wall of the toothed ring (801), and the driven wheel (803) is meshed with the toothed ring (801) and the driving wheel (802).

4. A centrifugal pump with self-cleaning function according to claim 3, characterized in that the driving wheel (801) is fixedly connected with the impeller discs (4), the driven wheel (803) is coupled between the impeller discs (4), the driving wheel (802) penetrates through the impeller discs (4) and is fixedly installed with the intermediate disc (5), and the output shaft (7) is fixedly connected with the driving wheel (802).

5. The centrifugal pump with the self-cleaning function according to claim 1, wherein the cleaning mechanism comprises a scraper (10) and a guide rod (11), the guide rod (11) is fixedly installed on the scraper (10), a guide groove (16) is integrally formed in the pump shell (1), the guide rod (11) is in sliding fit with the guide groove (16), a trapezoidal block (12) is fixedly installed at one end of the scraper (10), a fixing rod (14) is fixedly installed on the impeller disc (4), a contact block (13) is fixedly installed at one end of the fixing rod (14), a clockwork spring (15) is fixedly installed in the pump shell (1), and the clockwork spring (15) is fixedly connected with one end of the scraper (10).

6. Centrifugal pump with self-cleaning function according to claim 5, characterized in that said trapezoidal blocks (12) interfere with the movement trajectory of the interference blocks (13).

7. Centrifugal pump with self-cleaning function according to claim 1, characterized in that the cutting blade (6) has a sharp portion (20) integrally formed thereon.

8. Centrifugal pump with self-cleaning function according to claim 5, characterized in that the said counter block (13) is integrally formed with an inclined contact portion.